Spbayer



May 15. 1928.

A. w. KEGLER SPRAYER Oi'iginal Filed Dec. 6; 1923 In Vcnvor A N TON W. HEGLER B'YM five/MW Attorneys Reissued May 15,. 1 928.

UNITED s A Re. 16,961 FICE.

ANTON w. KEGLER, or mmrmroms mmivnsorn' srnnizm.

Original No. 1,639,297, dated August 16, 1927, Serial No. 678,880, filed. December 6, 1923. Application for reissue filed November 16, 1927. Serial No. 233,697.

My invention provides a simple but highly important improvement in' hand-operated Sprayers of the cylinder and umptype, such as are especially adapted or spraying of fiy-destroying solutions, disinfectants, germicides, and the like, and'to such ends, generallystated, the invention consists of the novel construction, combinations and arrangements of parts hereinafter described and defined in the claims.

In sprayers'of this type, a small liquidcontaining tank is mechanically connected or attached to apump cylinder and the liquid is drawn from the tank through a small 1. liquid-delivery tube by suction produced at the outer end of said tube by a small blast of air blown from the pump cylinder across the delivery or outer end of said liquid-delivery tube. In the customary arrangement,

the liquid-containing tank is. a small cylinder arranged below and extended transversely of the delivery end of the pump cylinder, and its axis is considerably at the rear of the discharge orifice of the pump cylinder and of the .delivery end of theliquid-delivery tube. In such arrangement; it has been customary to extend the liquid-delivery tube verticall downward from the air discharge orifice of the pump cylinder'and to terminate the same near the bottom but forward of a line drawn perpendicularly downward from the axis of the pump cylinder through the axis of the cylindrical tank. Such an arrangement works very satisfactorily as long as the sprayer is used with the pump cylinder either horizontal or with itsdelivery. end turned downward, but when the pump cylinder is turned obliquely with its delivery end upward, as is very frequently required in operating above the head of the operator, then the sprayer will cease to act while there is still a considerable amount of the spraying liquid within the tank. Otherwise stated, it has been impossible to spray all of the liquid out of the tank when the sprayer is used to deliver or throw an upward spray.

I obviate this defect simply by extending the receiving end ofthe liquid delivery tube downward and backward on the line of a curve somewhat closely following the curved bottom of the tank to a point rearward of a line extended vertically downward from the axisof thepump cylinder through the axis of the cylindrical tank.

In the accompanying drawings, which illustrate a sprayer withv the liquid-delivery tube arranged in accordance with my invention, like characters indicate like parts throu bout the several'views.

Re erring to.the drawings: r Fig. lis a side elevation with some parts sectioned on,the line 2-2-of Fig. 1; and

, ',Fig. 2 is a front end elevation of the sprayer shown in F ig. 1.

The numeral 3 indicates the pump cylinder and the numeral 4 indicates the pump piston, the latter beingsecured in the usual or any suitable way to a piston rod'5 that works through the rear head 6 of'the' cylinder and is provided with a suitable hand piece 7. The pump cylinder is provided in its front end head 8 with a small axial air discharge orifice ,9. The numeral '10 indicates' a cylindrical liquid-containing tank that is secured to the lower front end portion of the cylinder3 by solder or any other suitable means, and, as shown, is provided with a removable filler cap 11. I have found it convenient in securing the tank and pump cylinder together to make a seat in the top ofthe cylindrical tank 10 by cutting away a portion thereof that will fit'closely around i the sides of the end of the pump cylinder as shown in Fi attached by solder there are extended contraojting portions, as shown, which serve to brace the arts together, and prevent the tank from hreaking loose from the cylinder by ordinary wear.

The numeral 12 indicates the liquid-delivery tube, the upper portion of which is preferably straight andvertically disposed or extendedperpendicularly to the axis of the pump cylinder. and is soldered or otherwise rigidly. secured to the.- cylinder head 8 with its upper end terminating in axial alignment with the discharge orifice. 9.

Around the orifice 9 there isa depression in. the head 8- as shown in the drawings; This depression has a useful function. As the air is driven rapidly from the orifice 9 the depression around the orifice influences the col umn of. air as it is forced through the orifice and permits aspreading action and as the liquid ascends through the tube 12 and is convertednear the orifice into a fog or mist,

it is found that this depression around the orifice aids in subdividing the mist particles and gets a decidedly improved fog or spray. The lower portion of this tube 12 extends 1. 'After these parts are ll U down into the tankdlO and its curved lower end 13, as already indicated, is extended on the line of a curve and terminates close to the bottom of the tank at a point at the rear of a line extended perpendicularly down-' ward from the axis of the pump cylinder through the axis'of the tank 10, said imagi nar,

line being indicated on Fig. 1 by a bro en line marked yy. It is evident from the disclosure that should the pump cylinder 3 be pointedupwardly, the fluid in the tank would flow to the left in'Fig. 1 and the end of the pipe 13 would remain covered with fluid until nearly all the fluid is exhausted. On the other hand, if the cylinder 3 of the pump be pointed downwardly, the

' indicated at at.

fluid which had entered the bend in the bottom of the tube 12 would remain in the pipe and supplythe fluid necessary for the spray asthe piston wasoperated back and. forth until the fluid in the bend was exhausted.

From the foregoing, it is obvious that the important advantages of this improved tube are; accom lished without any additional cost. Inig. 1, the l-iquidtube spread is What I claim is 1. A sprayer comprising a pump piston and a cylinder of uniform bore from end to end, the pump cylinder having a cylinder head-with a. single open orifice nearuts center, a cylindrical tank with its axis extending transversely of said pump c linder-and having a seat formed inthe cy ind-rical wall of the tank ofsubstantial arcualextent to 'receivea portion of the head and the lower side of the pump cylinder, the'cylindric'al wall of the tank extendinga substantial distance above the lower portion of the pump I cylinder and the head and being in contacting relation with the outer face of said head and soldered to said cylinder and head, a liq-' uid delivery tube extending fromnear the bottom of the tank upwardlfy and-along the outer wall 0 end of the tube extending close around the inner wall of the tank, and a substantial distance rearwardly of a line drawn perpendicularly downwardly from the. axis of the I pump cylinder through the axis of said tank.

2.-A sprayer comprising a pump piston and a cylinder having a cylinder head with an open orifice therein, a tank extending transversely of the length of said pump cylinder and over which the end of the pump cylinder lies and to 1wh'ich,it is attached, a liquid delivery tube extended-from near the bottom of the tank upwardl to 'said orifice and along the outer wall 0 the pump cylinder head and attached thereto, the lower end of the tube extending around the inner wall of the tank and a substantial distance rearwardly of a line drawn perpendicularl downwardly from the axis of the pump cy to said orifice. the pump cylinder head and soldered thereto, the lower 'inder through the axis of said tank, whereby when the pump cylinder is pointed upwardly the lower end of the tube will remain with a single open orifice therein, a cylindrical tank having its axis extended transversely of said pump cylinder and having a hole cut out in thecylindrical wall of the tank to receive a portion of the lower side of the pump cylinder and its head, said hole formm for the pump cylinder-and head seat of sudistajntial arcual extent with the under side and head of the cylinder vfitted into the hole with the outer face of the head in abutting relation to the tank wall, said cylinder and headsoldered to the cylindrical wall of the tank, a liquid delivery tube extended from near the'bottom of the tank upwardly to vsaid orificealong the outer wall of the cylinder head and soldered thereto, the lower end of the tube extending closely to the inner wall of the tank'a-nd a substantial distance rearwardly of a line drawn perpendicularly downwardly from the axisof the pump cylinder through the axis of the tank. LA sprayer comprising a pump piston and a cylinder in which said piston is reciprocable, said cylinder having a cylinder head with an open orifice therein, a tank over pumpcylinder lies and to which it is attached, a liquid delivery tube extendin from near the bottom of the tank upwardl y to said orifice and along the wall of the pump cylinder'head and attached thereto, the portion of the tube within the tank extending downwardly andlrearwardly through which the discharge end portion only of the the. tank and a substantial distance rear- 'wardly of .a line-drawn perpendicularly downward from the axis of the pump cylinder through the axis of the tank and terminating within the tank and near its bottom wall, whereby when thepump cylinder is pointed-upwardly the lower end of the tube will remain below the surface of the liquid in the tank even though it benearly exhausted and when the. pump is pointed downwardly enough liquid will remain in the rearward portion ofthe tube to form aspray when the pump piston is operated.

5. A sprayer comprising a pump piston and a cylinder of. uniform bore from end to end in which said piston is reciprocable, a

cylinder head with an open orifice therein, a.

tank over which the discharge end portion only of the pump cylinder lies and to which it is attached, a liquid delivery tube attached thereof the lower part of thetube extending a substantial distance rearwardly of a line drawn perpendicularly downward from the axis of the pump cylinder through the axis of the tank whereby, when'the pump is pointed upwardly, the lower end of the delivery tube will extend below the upper surface of the liquid-therein although the liquid is nearly exhausted and when the pump is pointed downwardly enough liquid will remain in the lower portion of the tube to form a spray when the pump piston is operated.

In witness whereof, I have hereunto set my 20 hand this 28th day of September, 1927.

- ANTON W. KEGLER. 

